diff --git a/stdlib/public/Concurrency/Task+init.swift.gyb b/stdlib/public/Concurrency/Task+init.swift.gyb
index 36a2e597e0be3..ec121e26fdbcd 100644
--- a/stdlib/public/Concurrency/Task+init.swift.gyb
+++ b/stdlib/public/Concurrency/Task+init.swift.gyb
@@ -253,12 +253,13 @@ extension Task where Failure == ${FAILURE_TYPE} {
 % end
   ///
 % if IS_DETACHED:
-  /// Don't use a detached unstructured task if it's possible
-  /// to model the operation using structured concurrency features like child tasks.
-  /// Child tasks inherit the parent task's priority and task-local storage,
-  /// and canceling a parent task automatically cancels all of its child tasks.
-  /// You need to handle these considerations manually with a detached task.
+  /// A detached `Task` will not inherit task priority or task-local storage
+  /// from a parent task. You will need to handle these considerations manually.
 % end
+  ///
+  /// Asynchronous operations modeled with `Task` are ["unstructured concurrency"](https://docs.swift.org/swift-book/documentation/the-swift-programming-language/concurrency/#Unstructured-Concurrency).
+  /// Among other concerns, an unstructured task will not inherit cancellation
+  /// from a parent task.
   ///
   /// You need to keep a reference to the task
   /// if you want to cancel it by calling the `Task.cancel()` method.
diff --git a/stdlib/public/Concurrency/Task.swift b/stdlib/public/Concurrency/Task.swift
index 3ad1294e79ee5..8a36482f58bc0 100644
--- a/stdlib/public/Concurrency/Task.swift
+++ b/stdlib/public/Concurrency/Task.swift
@@ -30,9 +30,9 @@ import Swift
 /// you give up the ability
 /// to wait for that task's result or cancel the task.
 ///
-/// To support operations on the current task,
-/// which can be either a detached task or child task,
-/// `Task` also exposes class methods like `yield()`.
+/// To support operations on the current task, `Task` also exposes class methods
+/// like `yield()`. The current task can be either an unstructured `Task`, a
+/// detached unstructured `Task`, or a child task (an `async let` or a task group).
 /// Because these methods are asynchronous,
 /// they're always invoked as part of an existing task.
 ///
@@ -77,6 +77,17 @@ import Swift
 /// This reflects the fact that a task can be canceled for many reasons,
 /// and additional reasons can accrue during the cancellation process.
 ///
+/// An instance of `Task` becomes cancelled only when its ``Task/cancel()`` 
+/// method is explicitly invoked. No other mechanism can cancel a `Task`, 
+/// including any instance of `Task` created within the scope of another 
+/// cancelled task. To propagate cancellation from an enclosing task, provide a 
+/// cancellation handler via ``withTaskCancellationHandler(operation:onCancel:isolation:)``.
+///
+/// Any instance of `Task` that you initialize for yourself is a top-level,
+/// _unstructured_ task. For more information about the implications of
+/// unstructured tasks, read the ["Unstructured Concurrency"](https://docs.swift.org/swift-book/documentation/the-swift-programming-language/concurrency/#Unstructured-Concurrency)
+/// portion of the Swift Programming Language book.
+///
 /// ### Task closure lifetime
 /// Tasks are initialized by passing a closure containing the code that will be executed by a given task.
 ///
@@ -200,9 +211,15 @@ extension Task {
   ///
   /// - It flags the task as canceled.
   /// - It causes any active cancellation handlers on the task to run, once.
-  /// - It cancels any child tasks and task groups of the task, including
-  ///   those created in the future. If those tasks have cancellation handlers,
-  ///   they also are triggered.
+  /// - It cancels any child tasks (`async let` and other forms of structured
+  ///   concurrency, not other `Task` instances) and task groups of the task,
+  ///   including those created in the future. If those tasks have cancellation
+  ///   handlers, they also are triggered.
+  ///
+  /// Cancelling a `Task` does not cancel other instances of `Task` that were
+  /// or will be created during its operation. Those other instances will not
+  /// become cancelled until and unless they are explicitly cancelled via
+  /// their `cancel()` methods being called on them.
   ///
   /// Task cancellation is cooperative and idempotent.
   ///
@@ -671,8 +688,8 @@ extension Task where Success == Never, Failure == Never {
 /// and save it for long-term use.
 /// To query the current task without saving a reference to it,
 /// use properties like `currentPriority`.
-/// If you need to store a reference to a task,
-/// create an unstructured task using `Task.detached(priority:operation:)` instead.
+/// If you need to store a reference to a task, create an unstructured task using
+/// ``Task.init(name:priority:operation:)`` or ``Task.detached(priority:operation:)`` instead.
 ///
 /// - Parameters:
 ///   - body: A closure that takes an `UnsafeCurrentTask` parameter.
diff --git a/stdlib/public/Concurrency/TaskCancellation.swift b/stdlib/public/Concurrency/TaskCancellation.swift
index b4d453e72651c..d8c584fade243 100644
--- a/stdlib/public/Concurrency/TaskCancellation.swift
+++ b/stdlib/public/Concurrency/TaskCancellation.swift
@@ -73,6 +73,33 @@ import Swift
 /// as resuming a continuation, may acquire these same internal locks.
 /// Therefore, if a cancellation handler must acquire a lock, other code should
 /// not cancel tasks or resume continuations while holding that lock.
+///
+/// ### Propagating cancellation to unstructured tasks
+///
+/// If an unstructured task (an instance of ``Task``) is created during the 
+/// operation of another task, cancellation of the enclosing task will not
+/// propagate to the unstructured task without an explicit cancellation handler:
+///
+/// ```swift
+/// let outer = Task {
+///     let inner = Task {
+///         // The next statement will not throw an error unless cancellation of
+///         // the `outer` task is manually propagated to the `inner` task via a
+///         // cancellation handler:
+///         try Task.checkCancellation()
+///         return try await work()
+///     }
+///     return try await withTaskCancellationHandler {
+///         try await inner.value
+///     } onCancel: {
+///         inner.cancel()
+///     }
+/// }
+///
+/// // When `outer` becomes cancelled, the `onCancel` handler above will run,
+/// // causing `inner` to become cancelled, too.
+/// outer.cancel()
+/// ```
 @available(SwiftStdlib 5.1, *)
 #if !$Embedded
 @backDeployed(before: SwiftStdlib 6.0)